Buffer.prototype.split=Buffer.prototype.split|| function(b){
    let arr = [];

    let cur = 0;
    let n = 0;
    while((n=this.indexOf(b,cur)) !=-1){
        arr.push(this.slice(cur,n));
        cur = n + b.length;
    }
    arr.push(this.slice(cur,this.length));
    return arr;
}